Checking device for motor car doors



Sept. 27, 1938. v. VALLETTA 2,131,339

C HECKING DEVICE FOR MOTOR CAR DOORS Filed Oct. 6, 1957 Fig. 1.

UNITED STATES PATENT OFFICE CHECKING DEVICE FOR MOTOR CAR DOORS Y Vittorio Valletta, Turin, Italy, assignor to Fiat Y Societa Anonima, Turin, Italy Application October 6, 1937, Serial No. 167,666 In Italy October 14, 1936 2. Claims. (01. 16-85) With many motor cars, particularly those havlevers have noses 33a which are struck by the ing streamlined coachwork and inwardly in-. head 34 towards the end of the opening moveclined side walls, the doors tend to close as soon ment of the door, the spring 36 moving them toas they are released after having been openedwards each other again after they have been owing to the inclination of the hinge axis, and moved apart during the passing of the head. 5 especially when the car is on uneven ground- To close the door the pressure of the arms 33 thereby disturbing passengers stepping in and has to be overcome which is done by the head 34 out of the car. abutting the noses 33a in a contrary direction The present invention provides a device autocausing them to move apart. Immediately the matically acting to maintain the door resiliently head 34 has passed the noses these again move 10 in the open position in such manner as to allow towards one another under the action of the it to be closed under slight effort applied to the spring 36. At the end of the opening movement door in the usual way. of the door the head 34 strikes a damper or According to the invention the device comcushion 31 fixed to the door. prises at least one lever which is mounted in a What I claim is: 15 recess in the door, or in the pillar of the door 1. In combination with a door hin ed to the opening, and which resiliently clamps between body of motor cars, a checking device for said two guide surfaces the head of an arm eccendoor comprising a stay arm pivoted eccentrically trically pivoted, with respect to the door hinge with respect to the axis of the door hinge and v axis, to the pillar of the door opening, or to the arranged to oscillate by effect of the movements 2 door frame, said guide surfaces having seats of the door, a head on said arm, two levers arwhich the head abuts when the door is opened. ranged on opposite sides of the path of said head, More particularly, the two guide surfaces are a guide surface on each lever for said head, a provided by a pair of levers subjected to the prin in n Saidlevers and tending to draw 5 action of a spring tending to draw them together them together and clamp their guide surfaces 3;;

against the head of the pivoted arm, said levers against said head, and a nose on each of said being formed with projections past which the levers arranged at an end of the guide surfaces head of said arm snaps as the fully open posithereof to engage said head when the door is tion of the door is reached and against which Op edthe head then bears. 2. In combination witha door provided with a :0

In the accompanying drawing: recess and hinged to a pillar of the body of Figs. 1 and 2 show an elevation partly in secmotor cars, a checking device for said door comtion and a horizontal sectional view, respectivep s a a t Secured to d p a y 1y, of a preferred embodiment of the invention. arm pivoted eccentrically to said bracket and In the embodiment of the invention shown in entering said recess in the door, a head on said 35 Figs. 1 and 2, the reference character A desigarm, a supporting plate in said recess in the door, nates a door pillar of the coachwork and B rea lever pivoted to said supporting plate, a guide fers to the door which is hinged to the pillar A surface on said arm, two levers arranged on opin conventional manner, on an axis represented posite sides of the path of said head, a guide in Fig. 2 by pivot 0. An arm 32 articulately consurface on each lever for said head, a spring act- 40 nected with a bracket on the door pillar at 3| ing on said levers and tending to draw themeccentrically with respect to the axis 0 has 2. together and clamp their guiding surfaces against head 34 which cooperates with resilient means said head, and a nose on each of said levers arconstituted by the long arms 33 of a pair of levers ranged at the end of the guide surfaces thereof mounted on pivots 30 carried by the door, the to engage said head when the door is opened.

shorter arms 35 of said levers being under the action of a spiral spring 36. The arms 33 of the VITTORIO VALLET'IA. 

